Specification of rotor side voltage source inverter of a doubly-fed induction generator for achieving ride-through capability

2008 ◽  
Vol 2 (3) ◽  
pp. 139-150 ◽  
Author(s):  
S. Chondrogiannis ◽  
M. Barnes
Keyword(s):  
Voltage Source ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Voltage Source Inverter ◽  
Doubly Fed

Fault-Tolerant Voltage Source Converter for Wind-Driven Doubly Fed Induction Generator Connected to a DC Load

2018 ◽  
Vol 27 (10) ◽  
pp. 1850153 ◽  
Author(s):  
Bilel Touaiti ◽  
Hechmi Ben Azza ◽  
Mongi Moujahed ◽  
Mohamed Jemli
Keyword(s):  
Fault Detection ◽  
Fault Tolerant ◽  
Open Circuit ◽  
Photovoltaic System ◽  
Voltage Source ◽  
Induction Generator ◽  
Voltage Source Converter ◽  
Doubly Fed Induction Generator ◽  
Detection Scheme ◽  
Doubly Fed

This paper presents a fault-tolerant Voltage Source Converter (VSC) for Field Oriented Control (FOC) of a stand-alone Doubly Fed Induction Generator (DFIG) connected to a DC load. In the proposed topology, the stator of the DFIG is connected to a DC load through a diode rectifier, while the rotor is connected to the DC load through a VSC. This topology allows the integration of DFIG in the hybrid system with other sources of production and storage, such as photovoltaic system, connected to the same DC bus. The fault-tolerant VSC consists in incorporating a fourth leg to replace the faulted leg. A fault detection scheme for switch device open-circuit faults is proposed in this study. The novelty of this method consists in analyzing the rotor currents within normal and faulty operating modes. Simulation results are presented for a 3.7[Formula: see text]kW DFIG-DC system with single open-circuit faults that validate the methods presented in this study. The effectiveness of the proposed fault detection method has been validated experimentally by using dSpace DS1104 control board based on TMS320F240 real time Digital Signal Processor (DSP).

scholarly journals Dynamic Modeling and Robust Controllers Design for Doubly Fed Induction Generator-Based Wind Turbines under Unbalanced Grid Fault Conditions

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 454 ◽  
Author(s):  
Imran Khan ◽  
Kamran Zeb ◽  
Waqar Din ◽  
Saif Islam ◽  
Muhammad Ishfaq ◽  
...  
Keyword(s):  
Wind Turbines ◽  
Reactive Power ◽  
Negative Impact ◽  
Voltage Source ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Grid Voltage ◽  
Active And Reactive Power ◽  
Doubly Fed ◽  
Unbalanced Grid

High penetration of large capacity wind turbines into power grid has led to serious concern about its influence on the dynamic behaviors of the power system. Unbalanced grid voltage causing DC-voltage fluctuations and DC-link capacitor large harmonic current which results in degrading reliability and lifespan of capacitor used in voltage source converter. Furthermore, due to magnetic saturation in the generator and non-linear loads distorted active and reactive power delivered to the grid, violating grid code. This paper provides a detailed investigation of dynamic behavior and transient characteristics of Doubly Fed Induction Generator (DFIG) during grid faults and voltage sags. It also presents novel grid side controllers, Adaptive Proportional Integral Controller (API) and Proportional Resonant with Resonant Harmonic Compensator (PR+RHC) which eliminate the negative impact of unbalanced grid voltage on the DC-capacitor as well as achieving harmonic filtering by compensating harmonics which improve power quality. Proposed algorithm focuses on mitigation of harmonic currents and voltage fluctuation in DC-capacitor making capacitor more reliable under transient grid conditions as well as distorted active and reactive power delivered to the electric grid. MATLAB/Simulink simulation of 2 MW DFIG model with 1150 V DC-linked voltage has been considered for validating the effectiveness of proposed control algorithms. The proposed controllers performance authenticates robust, ripples free, and fault-tolerant capability. In addition, performance indices and Total Harmonic Distortions (THD) are also calculated to verify the robustness of the designed controller.

scholarly journals Performance Analysis of Doubly Fed Induction Generator Using Vector Control Technique

2015 ◽  
Vol 5 (5) ◽  
pp. 929
Author(s):  
Aye Myat Thin ◽  
Nang Saw Yuzana Kyaing
Keyword(s):  
Power System ◽  
Wind Turbine ◽  
Smooth Transition ◽  
Control Technique ◽  
Voltage Source ◽  
Induction Generator ◽  
Voltage Source Converter ◽  
Doubly Fed Induction Generator ◽  
Detailed Model ◽  
Doubly Fed

There are many solar power and wind stations installed in the power system for environmental and economic reasons. In fact, wind energy is inexpensive and the safetest among all sources of renewable energy, it has been recognized that variable speed wind turbine based on the doubly fed induction generator. It is the most effective with less cost and high power yield. This paper has chosen doubly fed induction generator for a comprehensive study of modelling, performance and analysing. DFIG wind turbine has to operate below and above synchronous speed which requires smooth transition mode change for reliable operation to be controlled to provide stability for the power system. Hence its performance depends on the generator itself and the converter operation and control system. This paper presents completed mathematical model of DFIG with its AC/DC/AC converter driven by DC machine. The rotor is considered fed by a voltage source converter whereas the stator is connected to the grid directly. The capacity of the wind power generation is 1.5MW. The voltage rating and frequency for this system are 575V, 50Hz .This paper show detailed model of DFIG.

Command of a Doubly-Fed Induction Generator with a Backstepping Controller for a Wind Turbine Application

2017 ◽  
Vol 10 (1) ◽  
pp. 56 ◽  
Author(s):  
Zakaria Sabiri ◽  
Nadia Machkour ◽  
Nabila Rabbah ◽  
Mohammed Nahid ◽  
Elm'kaddem Kheddioui
Keyword(s):  
Wind Turbine ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Backstepping Controller ◽  
Doubly Fed
Sign in / Sign up

Export Citation Format

Share Document